As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING REMOVAL OF THE FS 1031.00 FRAME, 3 EA FASTENER HOLES WERE ELONGATED IN FUSELAGE SKIN BETWEEN STGR 23L TO STGR 26L. C-CHECK RO 11/3/2020. REPAIRED ELONGATED FASTENER HOLES, REF REO. PRESSURIZATION CHECK GOOD, REF CRJ 700 AMM. COMPLIED WITH TASK CARD.